2-Chloroaniline → HCID 178468314, compound

HRID 1407073Notes

Reaction equation

[Cl:1][C:2]1[CH:8]=[CH:7][CH:6]=[CH:5][C:3]=1[NH2:4].[N:9]([O-])=O.[Na+].C([O-])(=O)C.[Na+].[C:18]([CH2:21][C:22](=[O:24])[CH3:23])(=[O:20])[CH3:19]>C(O)(=O)C.Cl.O.C(O)C>[Cl:1][C:2]1[CH:8]=[CH:7][CH:6]=[CH:5][C:3]=1[NH:4][N:9]=[C:21]([C:22](=[O:24])[CH3:23])[C:18](=[O:20])[CH3:19]

Participants

Conditions

Temperature: 0 °C

Procedure

To a solution of 2-chloroaniline (1000 mg, 7.87 mmol) in 10 mL of acetic acid and 2 mL of concentrated hydrochloride solution, sodium nitrite (652 mg, 9.45 mmol) in 4 mL of water was added dropwise at 0° C., and the mixture was stirred at 0° C. for 1 h. Then to the reaction mixture was added dropwise a solution of sodium acetate (1940 mg, 23.62 mmol) and acetylacetone (1024 mg, 10.24 mmol) in 10 mL of ethanol and 6 mL of water. The mixture was stirred at room temperature overnight, filtered, washed with water, EtOH/H2O (1:1) and hexane, and dried to give 3-[(2-chlorophenyl)hydrazono]pentane-2,4-dione (860 mg, 46%).

Workup

stirringThe mixture was stirred at room temperature overnight
filtrationfiltered
washwashed with water, EtOH/H2O (1:1) and hexane
customdried

Sources & evidence

ORD record: ord-f870b3ef56b646f89c09f45bc09c0636
Source dataset: uspto-grants-2014_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08916566B2

Reaction notes

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